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STOCK-BASED COMPENSATION. (Future Stock-Based Compensation Expense) (Details) $ in Millions	Sep. 30, 2019 USD ($)
Share-based Payment Arrangement [Abstract]
Fourth quarter 2019	$ 43.6
2020	100.6
2021 through 2024	80.6
Total	$ 224.8

X

- Definition

Unrecognized cost of unvested share-based compensation awards to be recognized in the second fiscal year through vesting period.

+ References

No definition available.

+ Details

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X

- Definition

Unrecognized cost of unvested share-based compensation awards to be recognized in the next fiscal year.

+ References

No definition available.

+ Details

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X

- Definition

Unrecognized cost of unvested share-based compensation awards to be recognized in quarter four of the fiscal year.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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